Vintage/Retro Clear Glass Furniture Casters from the 1940s. Two Sizes Available. Four larger sized ones available measuring 2 7/8 Inches across the bottom, 7/8 Inch high with an opening of 2 1/8 Inches. Four smaller sized ones available measuring 2 1/4 Inches across the bottom, 3/4 Inch high with an opening of 1 1/2 Inches. All Casters in Excellent, Clean Condition with typical wear from usage, but no chips or cracks. Total of Eight Casters are available at $3 per Caster.